The interventions that we are testing are low cost i.e one packet of progestogen-only pills (£3 for most costly brand) plus additional consultation time with the pharmacist (estimated 20 mins@ £1 per minute), versus the staff consultation time in a family planning clinic. In the family planning clinic, women would be seen as a 'walk-in' and so this may not add costs, since staff are already present.These interventions could, if shown to be effective, offer huge costs savings to the NHS, by reducing the costs of unintended pregnancies (abortion, miscarriage, birth).